Q. A 27-year-old man is brought by ambulance to the emergency department after being stabbed in a mugging. He has a penetrating knife wound superior to his right nipple. Blood pressure is 100/60, heart rate is 126bpm, respiratory rate is 26bpm, and oxygen saturation is 90% on 100% oxygen facemask. The wound is bubbling, and the skin immediately around the wound is moving with respirations. An x-ray of the patient’s right chest is ordered and will likely reveal which of the following?